Stockton, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45.5 °F (low) to 67.2 °F (high). Annual precipitation averages 45 Inches. Stockton is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.2 °F | 42.3 °F | 1.86 in. |
| February | 25.9 °F | 47.6 °F | 2.14 in. |
| March | 34.8 °F | 57.4 °F | 2.97 in. |
| April | 44.1 °F | 67.4 °F | 4.83 in. |
| May | 54.6 °F | 75.5 °F | 6.04 in. |
| June | 64.0 °F | 84.3 °F | 5.01 in. |
| July | 68.1 °F | 89.3 °F | 4.21 in. |
| August | 66.3 °F | 88.7 °F | 3.62 in. |
| September | 57.8 °F | 80.9 °F | 4.32 in. |
| October | 46.0 °F | 69.7 °F | 3.9 in. |
| November | 35.5 °F | 56.8 °F | 3.42 in. |
| December | 26.5 °F | 46.0 °F | 2.7 in. |
| Annual | 45.5 °F | 67.2 °F | 45.02 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |